housing contract takeover

Hi! I will be doing exchange at UCL for terms 2 and 3. I would love to takeover someone's contract or swap for an intercollegiate hall or ucl dorm thats close ish to campus. I would prefer catered and would prefer a private bathroom, but am flexible. Budget is around 320 per week. I currently have an offer from ucl for a single at Ifor Evans hall. Please reach out if you have a room or an advice!